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Money and Credit in Monetary Policy

Money and Credit in Monetary Policy. Based on work by: Lawrence Christiano, Roberto Motto, and Massimo Rostagno. Anchoring Inflation Expectations is the Widely Accepted Goal of Monetary Policy.

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Money and Credit in Monetary Policy

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  1. Money and Credit in Monetary Policy Based on work by: Lawrence Christiano, Roberto Motto, and Massimo Rostagno

  2. Anchoring Inflation Expectations is the Widely Accepted Goal of Monetary Policy • Without a solid anchor, inflation expectations can take on a ‘life of their own’, with potentially damaging social consequences (e.g., 1970s)

  3. Anchoring Inflation Expectations and Inflation Forecast Targeting • Strategy • A policy which raises interest rates more than one-for-one with a rise in inflation forecast, ensures that inflation expectations will be stable.

  4. Conventional Wisdom: Money/Credit Has No Role to Play in Inflation Forecast Targeting • Interest rate rule • No need for information on the money supply or credit aggregates to implement such a rule • Money does not seem to matter for the fit or dynamic properties of economic models • Money typically just dropped from models.

  5. But, Money/Credit May Have a Role After All • Inflation forecast targeting could inject undesirable volatility, for two reasons: • Ironically, inflation expectations can lose their anchor • In an economy with wage-frictions, inflation forecast targeting is ‘real wage targeting’ (Erceg-Henderson-Levin). • May produce excessive volatility by distorting the information content of the price mechanism • Undesirable volatility may be minimized by • Monitoring money and credit indicators • Intervening, or threatening to intervene, when indicators display substantial instability

  6. R IS(πe) LM y1 y π Phillips curve π1 y1 y

  7. R IS(πe’) IS(πe) LM y1 y π Phillips curve π1 y1 y

  8. R LM’ IS(πe’) IS(πe) LM y1 y π Phillips curve π1 y1 y

  9. R LM’ IS(πe’) IS(πe) LM y2 y1 y π Phillips curve π1 Initial jump in πenot validated… Any initial rise in πewould quickly disappear π2 y2 y1 y

  10. Is Inflation Forecast Targeting Robust? • Suppose environment is slightly different from conventional model • Higher R has negative supply-side effect • Working capital channel (Barth-Ramey, Christiano-Eichenbaum-Evans, ‘Price Puzzle’). • Other financial frictions which tighten with rise in R

  11. R IS(πe) LM y1 y π Phillips curve π1 y1 y

  12. R IS(πe’) IS(πe) LM y1 y π Phillips curve π1 y1 y

  13. R LM’ IS(πe’) IS(πe) LM y1 y π Phillips curve π1 y1 y

  14. R LM’ IS(πe’) IS(πe) LM y2 y1 y π π2 Phillips curve π1 Higher πeconfirmed and likely to persist y2 y1 y

  15. Monetary Monitoring • Analyze various models and find various forms of instability under inflation forecast targeting (Benhabib-Schmitt Grohe-Uribe) • Economy can display periodic cycles • Random fluctuations • Fall into a deflation trap • In each case, instability is associated with erratic behavior in money supply • Motivates ‘escape clause’ • Follow inflation forecast targeting rule unless a monitoring range for money growth is violated • If monitoring range is violated, commit to shifting to money growth rule

  16. A Second Way that Inflation Forecast Targeting May Introduce Instability • When wages are sticky, inflation forecast targeting distorts the information content of the price mechanism

  17. Boom-Busts and Inflation Forecast Targeting • We simulate the response of a standard DSGE model to a news shock (Beaudry-Portier) • A signal about higher future productivity generates a need for real wage to rise. • Inflation forecast targeting and sticky wages short-circuit ability of economy to generate a rise in real wage. • Employers get wrong signal: • Real wage falls, wrongly indicating that labor is cheap • The boom-bust is three times larger than what it should be. • Interestingly, boom-bust resembles in may ways the boom-busts we see in data.

  18. Inflation and Stock Price Inflation appears to be falling during the start-up of boom-bust episodes Stock Price (right-hand scale) Inflation (percentage points, left-hand scale)

  19. Conclusion • Showed two examples of potential for inflation forecast targeting to destabilize: • Ironically, may not prevent inflation expectations from losing an anchor • Can inject undesired volatility by distorting price system (sticky wages) • In both cases, committing to work with money/credit would help.

  20. Questions for Further Analysis • Monetary Monitoring: • What is the appropriate monitoring range? • How to handle velocity shocks? • Reacting to Credit Growth • improves economy’s response to news shocks • what about other shocks?

  21. Questions… • Why money/credit? • Our model analysis says: • ‘monitoring money and sometimes reacting to it can be a good idea’ • Model does not say: • ‘money is the only variable that can serve this purpose’ • To assign special status to money, must step outside model • monetary authorities have unique access to credit data and to understanding what they mean • Monetary authorities can credibly control money and credit

  22. Clarida-Gali-Gertler Model with Supply Side Channel

  23. Inflation and Stock Price Inflation appears to be falling during the start-up of boom-bust episodes Stock Price (right-hand scale) Inflation (percentage points, left-hand scale)

  24. Labor Share and Stock Price Stock Price (right-hand scale) Labor Share (left-hand scale)

  25. Credit and Stock Price Stock Price (right-hand scale) Inverse Credit Velocity (Left-hand scale)

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